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The database

Perennials

Herbaceous perennials that return year after year.

1,429 plants

Perennials in the database

Society Garlic (Tulbaghia Violacea 'Alba') — star-shaped white blooms and slender

Perennial

Society Garlic

Tulbaghia Violacea 'Alba'

FullUSDA 10–11
Soft-Stem Bulrush (Scirpus Tabernaemontani) — thus contributing to local biodiversity.<br><br>For landscape designers

Aquatic

Soft-Stem Bulrush

Scirpus Tabernaemontani

FullUSDA 9–10
Solomon's Plume (Smilacina Racemosa) — pointed leaves that can reach 3 to 6 inches in length; post-bloom, brilliant red berries adorn the plant, image 83

Ground cover

Solomon's Plume

Smilacina Racemosa

FullUSDA 3–8
Sombrero® Adobe Orange (Echinacea hybrid) — cinnamon-brown central cone

Perennial

Sombrero® Adobe Orange

Echinacea hybrid

FullUSDA 3–9
Sombrero® Granada Gold (Echinacea hybrid) — golden-yellow flowers with a prominent copper cone center

Perennial

Sombrero® Granada Gold

Echinacea hybrid

FullUSDA 3–9
Sombrero® Salsa Red (Echinacea hybrid) — red flowers with orange centers

Perennial

Sombrero® Salsa Red

Echinacea hybrid

FullUSDA 4–9
Sombrero® Sangrita (Echinacea hybrid) — The Echinacea 'Sombrero Sangrita'

Perennial

Sombrero® Sangrita

Echinacea hybrid

FullUSDA 3–9
Sombrero® Tres Amigos (Echinacea hybrida) — Hardy in zones 4-9, it thrives in full sun to part shade and requires well-drained soil

Perennial

Sombrero® Tres Amigos

Echinacea hybrida

FullUSDA 3–9
Songbird: Blue Bird (Aquilegia hybrid) — Aquilegia 'Blue Bird' offers charming sky-blue and white spurred blooms

Perennial

Songbird: Blue Bird

Aquilegia hybrid

HalfUSDA 3–10
Song Of India (Dracaena Reflexa 'Variegata') — making it versatile for various landscape scenarios

Perennial

Song Of India

Dracaena Reflexa 'Variegata'

HalfUSDA 9–10
Sonoma Sage, Creeping Sage (Salvia Sonomensis) — In late spring, it blooms with vibrant purple-lavender flowers, attracting various pollinators

Ground cover

Sonoma Sage, Creeping Sage

Salvia Sonomensis

FullUSDA 9–9
Sophie Cecile Begonia (Begonia 'Sophie Cecile') — and its undersides feature a rich reddish hue that adds visual interest

Perennial

Sophie Cecile Begonia

Begonia 'Sophie Cecile'

HalfUSDA 3–10
Sorbet Peony (Paeonia 'Sorbet') — This perennial grows 2-3 feet tall and spreads up to 2-3 feet

Perennial

Sorbet Peony

Paeonia 'Sorbet'

FullUSDA 3–8
Southern Charm Mullein (Verbascum 'Southern Charm') — reaching 24-30 inches tall and spreading up to 12-18 inches wide

Biennial

Southern Charm Mullein

Verbascum 'Southern Charm'

FullUSDA 5–9
Southern Comfort Alum Root (Heuchera 'Southern Comfort') — The Heuchera 'Southern Comfort' commonly referred to as Southern Comfort Alum Root

Perennial

Southern Comfort Alum Root

Heuchera 'Southern Comfort'

HalfUSDA 3–10
Southernwood (Artemisia Abrotanum) — This sun-loving herb appreciates well-drained soil, offering drought tolerance once established

Herb

Southernwood

Artemisia Abrotanum

FullUSDA 3–9
South Western Coral Bells (Heuchera Sanguinea) — offering a splash of color from late spring to early summer; green to burgundy leaves that may feature

Ground cover

South Western Coral Bells

Heuchera Sanguinea

HalfUSDA 3–10
So White Butterfly Flower (Gaura Lindheimeri 'So White') — this hardy plant occupies a modest footprint within garden beds

Perennial

So White Butterfly Flower

Gaura Lindheimeri 'So White'

FullUSDA 5–9
Spanish Iris (Iris Xiphium) — the Spanish Iris showcases elegant; including various shades of blue, image 71

Perennial

Spanish Iris

Iris Xiphium

FullUSDA 7–9
Spanish Lavender (Lavandula Stoechas) — deterring deer and acting as a natural pest repellent

Herb

Spanish Lavender

Lavandula Stoechas

FullUSDA 8–11
Sparaxis, Harlequin Flower (Sparaxis Tricolor) — Its striking hues peak in late spring to early summer; often with a dark center or 'eye,', image 75

Bulb

Sparaxis, Harlequin Flower

Sparaxis Tricolor

FullUSDA 3–10
Spark Plug Sedge (Carex 'Spark Plug') — fountain-like clump that mimics the appearance of a miniature palm tree

Perennial

Spark Plug Sedge

Carex 'Spark Plug'

HalfUSDA 8–10
Spider Milkweed (Asclepias Viridis) — Asclepias viridis, commonly known as Spider Milkweed, is a native perennial reaching heights of 1-2 feet

Perennial

Spider Milkweed

Asclepias Viridis

FullUSDA 3–9
Spiked Speedwell (Veronica Spicata) — Spiked Speedwell (Veronica spicata) is a charming perennial

Perennial

Spiked Speedwell

Veronica Spicata

FullUSDA 3–8

Photographs are credited on each plant’s page.